Activision Blocking Linux Gabriel Knight Re-release

The
Pinkerton Road forums reveal that the upcoming Gabriel Knight: Sins of the
Fathers 20th Anniversary Edition will not be released for Linux as originally
planned (thanks Xil via
[Phoronix].
This is the doing of rights-holder Activision, but even the developers at
Phoenix Online Studios are at a loss as to why:

Figured this deserved its
own thread. I hate to be the bearer of bad news here, but my previous statement
that GK would be available on Linux turns out to be incorrect. I can't even
begin to imagine why, but Activision isn't allowing the game to be made for that
platform. Just PC, Mac, Android, and iOS devices.